25564495 has 8 divisors (see below), whose sum is σ = 33466320. Its totient is φ = 18592320.

The previous prime is 25564471. The next prime is 25564499. The reversal of 25564495 is 59446552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25564495 - 2²¹ = 23467343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25564499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232350 + ... + 232459.

It is an arithmetic number, because the mean of its divisors is an integer number (4183290).

Almost surely, 2^25564495 is an apocalyptic number.

25564495 is a deficient number, since it is larger than the sum of its proper divisors (7901825).

25564495 is a wasteful number, since it uses less digits than its factorization.

25564495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464825.

The product of its digits is 216000, while the sum is 40.

The square root of 25564495 is about 5056.1343929923. The cubic root of 25564495 is about 294.5862052504.

The spelling of 25564495 in words is "twenty-five million, five hundred sixty-four thousand, four hundred ninety-five".